LPS25HB High-robustness pressure sensorwearable technology such as sports watches, smart watches,...
Transcript of LPS25HB High-robustness pressure sensorwearable technology such as sports watches, smart watches,...
www.st.com/pressure
LPS25HB High-robustness pressure sensor
STMicroelectronics LPS25HB pressure sensor integrates ST’s consolidated pressure sensor’s technology with the new fully molded package to further improve robustness, reliability and moisture resistance while reducing package thickness.With its ultra-low height of 0.76 mm, the LPS25HB offers high design flexibility and easy implementation into multi-functional applications: from smartphones, tablets and wearable technology such as sports watches, smart watches, fitness bands and Internet-of-Things (IoT) products.
MEMS pressure sensor: 260-1260 hPa absolute digital output barometer
APPLICATIONS• Weatherforecast
• Barometricaltitude
• Ascent/descentdetection
• Verticalspeedindication
• Indoornavigation(floordetection)
• EnhancedGPSnavigation
Key FeATureS• 260to1260hPadigitaloutputbarometer
• Currentconsumption:4μA
• SelectableODRfrom1Hzto25Hz
• SPIandI2C
• EmbeddedFIFO
• Supplyvoltage:1.7to3.6V
© STMicroelectronics - December 2014 - Printed in United Kingdom - All rights reservedThe STMicroelectronics corporate logo is a registered trademark of the STMicroelectronics group of companies
All other names are the property of their respective owners
For more information on ST products and solutions, visit www.st.comOrder code: FL1212LPS25HB1214
FIgure 1: LPS25HB BLOCK dIAgrAm
TheLPS25HBisanultra-thinpiezo-resistiveabsolutepressuresensor.
ItincludesamonolithicsensingelementandamixedsignalASIC,abletotaketheinformationfromthesensingelementandtoprovidethemeasurementinformationthroughdigitalserialinterfaces.
Thesensingelement,whichdetectsabsolutepressure,consistsofasuspendedmembranemanufacturedusingadedicatedprocessdevelopedbyST.
Thedevicemaybeconfiguredtogenerateinterrupteventsbasedonathresholdcrossing,whenanewsetofdataisavailableorbasedonFIFOstatus.Theeventisavailableonaregisteraswellasonadedicatedpin.
eVALuATION KITSSTeVAL-mKI109V2(Motherboard)
STeVAL-mKI165V1(Plug-inadapterwithLPS25HBsensor).
Oncetheadapterispluggedin,theboardcanbeconnectedtoahostPCviaUSBsothedevice’scapabilitiescanbeeasilyevaluatedviaanintuitivegraphicuserinterface.
X-NuCLeO-IKS01A1:MEMS&environmentalsensorsevaluationboardbasedonSTM32microcontroller,ArduinoUNOR3compliant.
Forfurtherinformationgotowww.st.com/pressure.
Test points
STM32microcontroller
USB connectorLPS25HB
JTAG/SWD
STEVAL-MKI109V2
STEVAL-MKIadapter
Order codes Temperature range (°C) Package Size Packing
LPS25HB, LPS25HBTr -30 to +105 HLGA-10L 2.5 x 2.5 x 0.76 mm Tray, Tape and reel
MUX AnalogFront-End
Pressure sensingelement
Temperaturesensor
ADC Digitalprocessing
I2CSPI